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16 lines
1 KiB
Text
16 lines
1 KiB
Text
Ownership of dynamic objects
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Any object-oriented system or language that doesn't have automatic garbage collection has many potential pitfalls as
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far as the pointers go. Therefore, some standards must be adhered to as far as who owns what.
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Strings:
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Arguments passed into a function are owned by the caller, and the function will make a copy of the string for its own
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internal use. The string should be const gchar *. Strings returned from a function remain the property of the
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function called, and the caller must make a copy if it is to use the string for an extended duration.
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Objects:
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The ownership of an object during a function call depends on the type of function. If the function is simply returning
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something from the object, such as _get_name(), the caller retains ownership. If the object passed is to be
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manipulated in some way, it is generally the case that the function will take over the ownership. This should be
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expressed as a reference increment on that object, but isn't in the general case (yet).
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